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[NewPassManager] Add tuning option: SLPVectorization [clang-change] 

Summary:
NewPassManager is not using CodeGenOpts values before this patch.
[to be coupled with D61616]

Reviewers: chandlerc

Subscribers: jlebar, cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61617

llvm-svn: 361534
This commit is contained in:
Alina Sbirlea 2019-05-23 18:51:02 +00:00
parent 3249be1e03
commit 267ac925fb
2 changed files with 33 additions and 1 deletions
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9
clang/lib/CodeGen/BackendUtil.cpp
View File

@ -1050,7 +1050,14 @@ void EmitAssemblyHelper::EmitAssemblyWithNewPassManager(
CodeGenOpts.DebugInfoForProfiling);
}
PassBuilder PB(TM.get(), PipelineTuningOptions(), PGOOpt);
PipelineTuningOptions PTO;
// For historical reasons, loop interleaving is set to mirror setting for loop
// unrolling.
PTO.LoopInterleaving = CodeGenOpts.UnrollLoops;
PTO.LoopVectorization = CodeGenOpts.VectorizeLoop;
PTO.SLPVectorization = CodeGenOpts.VectorizeSLP;
PassBuilder PB(TM.get(), PTO, PGOOpt);
// Attempt to load pass plugins and register their callbacks with PB.
for (auto &PluginFN : CodeGenOpts.PassPlugins) {

25
clang/test/CodeGen/loop-vectorize.c Normal file
View File

@ -0,0 +1,25 @@
// RUN: %clang -target x86_64 -S -c -O1 -fvectorize -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-ENABLE-VECT
// RUN: %clang -target x86_64 -S -c -O1 -fno-vectorize -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-DISABLE-VECT
// RUN: %clang -target x86_64 -fexperimental-new-pass-manager -S -c -O1 -fvectorize -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-ENABLE-VECT
// RUN: %clang -target x86_64 -fexperimental-new-pass-manager -S -c -O1 -fno-vectorize -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK-DISABLE-VECT
// CHECK-ENABLE-VECT-LABEL: @for_test()
// CHECK-ENABLE-VECT: fmul <{{[0-9]+}} x double>
// CHECK-DISABLE-VECT-LABEL: @for_test()
// CHECK-DISABLE-VECT: fmul double
// CHECK-DISABLE-VECT-NOT: fmul <{{[0-9]+}} x double>
#include <stdio.h>
void for_test() {
double A[1000], B[1000];
int L = 500;
for (int i = 0; i < L; i++) {
A[i] = i;
}
for (int i = 0; i < L; i++) {
B[i] = A[i]*5;
}
printf("%lf %lf\n", A[0], B[0]);
}